funok



2 Sheets-Sheen 1.

(No Model.)

J. W. PUNOK;

AUTOMATIC DAMPER REGULATOR.

Patented May 30. 1882.

INVENTOR WITNESSES 5 ATTORNEY N. versus. PHnm-Lnimgmphcr. Wnshhlglnn. n. c.

2 Sheets-Sheet 2.

(No Model.)

J. W. FUNCK.

AUTOMATIC DAMPER REGULATOR.

Patehted May 30, 1882.

u mi EH WITNESSES ATTORNEY ranged in connection therewith.

UNITED STATES PATENT OFFICE.

JOHN WV. FUNGK, OF STAPLETON, NEW YORK.

AUTOMATIC DAMPER-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 258,639, dated May 30, 1882.

Application filed January 24, 1882. (No model.)

To all whom it may concern:

Be it known that I, J'oHN WILLIAM FUNoK, of Stapleton, in the county of Richmond and State of New York, have invented certain new and useful-1m proveinents in Automatic Damper-Regulators, of which thefollowin g isa specification.

This invention relates to an improved automatic damper-regulator for steam-boilers, in which the steam is not employed directly for regulating the damper, but a certain quantity of the water of condensation which is acted upon by the steam-pressurein the boiler. This has the advantage that it prevents the contact of steam with the diaphragms of the damperregulating device, and secures the more reliable operation of the same.

Theinvention consists ofan automatic damper-regulator which is composed essentially of two separate working-cylinders with pistons and elastic diaphragms, the diaphragm of the first cylinder being worked directly by the pressure of the water of condensation in a vertical stand-pipe, so as to operate a slide-valve which admits the water of condensation to the second workingcylinder, the diaphragm and piston of which works a weighted lever, and thereby a suitable lever-connection with the damper of the smoke-flue. The weighted levers of both cylinders are adjusted to the re quired degree of pressure in the boiler, and arranged to press by pointed spindles upon the piston of the diaphragms, as will appear more fully hereinafter, and finally be pointed outin the claims.

In the accompanying drawings, Fi gurelrepresents a side elevation of a steam-boiler with my improved automatic damper-regulator ar- Fig. 2 is a vertical transverse section of the same on line at 00, Fig. 1. Fig. 3 is a detail plan view of the damper-regulator, drawn on an enlarged scale. Fig. 4 is a vertical transverse section on line y y, Fig. 3; and Fig. 5 is a side elevation of the same, partly in section on line 2 z, Fig. 3.

Similar letters of reference indicate corresponding parts.

My improved damper-regulator is arranged at any suitable point convenient to the damper in the smoke'flue of the boiler-furnace, it bein g connected by a pipe, a, with a vertical stand-pipe, P, which is again connected at the upper end by a pipe, I), to the front wall of the furnace, and by a return-pipe, b, to the steam-dome, as shown in Figs. 1 and 2, so as to admit steam to or shut it OK from the regulator in a convenient manner. The steam conducted from the boiler to the stand-pipeP is condensed in the lower part thereof, the water of condensation being under the same pressure as that in the boiler, and employed for working the damper-regulator by the conmeeting-pipe a.

The damper-regulator is constructed of two separate cylinders, B B, having each an elastic diaphragm, d, which is secured tightly thereto by the top plate of each cylinder B B. To the upper surface of the diaphragms d are applied metallic pistons 01, upon the centers of which rest the lower pointed ends of upright spindles e, the upper knife-edged ends of which support weighted levers O C, which bear, by knife-ed ged side studs, 6 e, in front of their fulcra, against fixed standards D D of the cylinders. The weight 0 of each lever rides upon the lever, and is applied thereto by means of clampingscrews applied through ears at opposite sides thereof, the levers being extended backward far enough to provide for the adjustment of the weight to different pressures in the boiler. The levers are guided in slotted standards E E, and stopped by setscrews ff in either direction, as shown clearly in Fig. 5.

The diaphragm of the first or starting cylinder, B, is provided with a downwardly-extending spindle, g, which is inclosed by acylindrical casin g, g, the lower end of the spindle havin g side recesses for supporting the forked end of a side valve, h, which serves to establish or interrupt the communication of the casing g with a pipe, k, that forms the connection of the first cylinder, B, with the second or working cylinder, B, and also of the supply-pipe h, as shown in Fig. 5. The cylindrical casing g below the starting-cylinder B is closed below the spindle of the slide-valve by a stop-cock, 9 in the same manner as the lower end of the stand-pipe P, so as to discharge the water of condensation thereby whenever it is desired to clean the pipes of the entire damper-regulating mechanism.

The first cylinder, 13, is supplied with water of condensation directly from the stand-pipe P by the pipe (I, the water of condensation passing around the spindle g in the casing 9 into the space below the diaphragm d. The weight on the lever of thefirst cylinder is so adjusted to the pressure desired in the boiler that the diaphragm dis heldin equilibrium by the action of the weight on its top and that ofthe steam-press are on its bottom side. It the pressure increases the diaphragm in the first cylinder is raised, while it recedes when the pressure decreases. This causes the raising or lowering of the slidevalve h, connected to the spindle g, and establishes communication with the pipe h and the second cylinder, B, so that the water ofcondeir sation willlit'tthe diaphragm ot' the same. The weighted lever ot' the second cylinder, B, is thereby lowered and the damper in the smokeflue partly or entirely closed by an iutermediate lever transmission, i 4;, which connects the rear end of the lever O with the damper F, as shown clearly in Fig. 2. The draft in the chimney is thereby reduced and the generation of steam in the boiler graduallydiminished. The pressurein the boileristhereby decreased. The diaphragm of the first cylinder and the side valve is lowered and placed in the position shown in Fig. 5, so thatdirect communication is established between the connecting-pipe h and the discharge-pipe 76 and thereby the water of condensation discharged from the second cylinder,B, to the outside. Thelowcring of the water-level in the second or working cylinder up to a level with the inner end of the pipe 1:, will causethe recedingof the diaphragm of the same and the returning of the damper into partly or entirely open position, so as to increase the draft and the generation of steam in the boiler. By the alternating play thus continually taking place the draft is regulated, and a normal steam-pressure secured in the boiler.

The damper-regulator operates in a reliable and accurate manner, owing to the separation of the work, which is partly done by the first or starting cylinder and partly by the second or working cylinder.

The regulator is more durable and reliable than those operated by steam, as there is less wear upon the working parts of the mechanism.

Having thus described my invention, Iclaim as new and desire to secure by Letters Patent- 1. The combination ot'a steam-boiler-furnace damper-regulator, two separate cylinders both having elastic diaphragms, the weighted regulating-levers, a slide-valve actuated by the starting-cylindcr,a communication between the said diaphragms, an outlet for the surplus wa tcr of condensation from said starting-cylinder, and a stand-pipe communicating with the steam-ovens of the boiler and with the start ing-cylinder, substantially in the manner and for the purpose described.

2. The combination of a starting-cylinder having an elastic diaphragm acted on by a weighted lever, a spindle fixed to the diaphragm, a valve applied to guide recesses of the spindle, the supply and discharge pipes, the second or working cylinder, its diaphragm and loaded lever, and a standpipc communicating with the stcamboiler and the first cylinder, substantially as described.

3. The combination of the two cylinders B 13, their diaphragms and loaded levers, the receiving and discharge pipes, and a valve applied to the spindle, substantially as described.

4. The combination of the damper, the transmitters between this damper, a loaded lever, c, the diaphragms in the two communicating cylinders B B, the loaded leverapplied to the dia iihragm ot' the cylinderB, the valve applied to the spindle in the latter cylinder, and the stand pipe communicating with the steamboiler and with the cylinder, substantially as described.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

JOHN \VILLIAld FUNOK.

\Vitnesses:

PAUL GonPEL, CARL Karma 

